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40220223 = 383161527
BaseRepresentation
bin1001100101101…
…1011000111111
32210200101202220
42121123120333
540244021343
63554020423
7665603061
oct231333077
983611686
1040220223
112078105a
1211577713
138442b64
1537e7183
hex265b63f

40220223 has 8 divisors (see below), whose sum is σ = 54273408. Its totient is φ = 26490264.

The previous prime is 40220197. The next prime is 40220231. The reversal of 40220223 is 32202204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40220223 - 28 = 40219967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40220233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80515 + ... + 81012.

It is an arithmetic number, because the mean of its divisors is an integer number (6784176).

Almost surely, 240220223 is an apocalyptic number.

40220223 is a deficient number, since it is larger than the sum of its proper divisors (14053185).

40220223 is a wasteful number, since it uses less digits than its factorization.

40220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161613.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 40220223 is about 6341.9415796742. The cubic root of 40220223 is about 342.6216677516.

Adding to 40220223 its reverse (32202204), we get a palindrome (72422427).

The spelling of 40220223 in words is "forty million, two hundred twenty thousand, two hundred twenty-three".

Divisors: 1 3 83 249 161527 484581 13406741 40220223